Which condition would likely mar a rabbit's conformation according to show standards?

A rabbit's conformation is a crucial aspect of show standards, as it affects how the animal is evaluated during competitions. Displaying a hunch in the back can significantly detract from a rabbit's overall appearance and structural integrity. According to show standards, a well-conformed rabbit should have a smooth, flowing outline that demonstrates good proportions and symmetry.

When a rabbit exhibits a hunch in its back, it suggests an abnormal posture that is not aligned with the desired characteristics, such as balance and gracefulness. Judges typically look for a rabbit with a straight and level back that promotes a pleasing silhouette and reflects good breeding practices.

In contrast, a smooth coat, a gracefully arched outline, and large ears are features that can be acceptable or even desirable under the right conditions. Each of these traits contributes positively to the rabbit's presentation in a show setting, whereas a hunch in the back indicates an undesirable deviation from the ideal conformation, which could lead to lower scores or disqualification in competitive settings.